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Chris LuandDevin
af77406cf9
* vector: allow restricting ANN search to index segments Query gains an optional index_segments list; when set and the index path is used, the scanner restricts the vector index search to those segments via with_index_segments. This is the seam the Enterprise planner uses to fan one query out across per-segment workers; OSS keeps passing None. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * vector: enumerate and partition index segments for fanout segments::index_segments lists the physical segment UUIDs covering the vector field at the pinned version; partition() assigns them round-robin to workers. The parity test proves two workers scanning disjoint shares merge back to the full-dataset top-K — the P3 exit gate, in-process. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * vector: let a query carry fragment ids for the unindexed sweep Lance only applies the index-segment restriction to indexed rows — unindexed fragments outside the selected segments are skipped. For a partitioned query to stay correct, the planner needs to hand the unindexed sweep to a worker too, so Query gains a fragments list that the scanner resolves to manifest fragments via with_fragments. A task carrying both searches its segments via the index and its fragments with flat KNN in the same scan. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * vector: empty scope returns no hits; cover the sweep in tests Some([]) fragments or index_segments fell through to an unrestricted scan — a worker assigned nothing would have searched everything. empty_scope short-circuits those queries, and the segment restriction only calls with_index_segments on a non-empty list. segments::segment_fragments also returns each segment's live fragment bitmap, and the parity test now leaves a fragment unindexed so the worker carrying it exercises the flat sweep — the contract the Enterprise planner relies on. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * vector: scope the scan to listed ∪ segment-covered fragments Lance intersects with_fragments with the selected index segments, so a worker given its segment share plus the unindexed sweep lost the share entirely — only the listed fragments were scanned. Expand the fragment list with the live coverage of the selected segments. The list is now also applied when it resolves empty: stale ids or an empty assignment must scan nothing, not fall through to an unrestricted scan. The merge test now leaves a fragment unindexed so the combined path is exercised. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * vector: partition assigns nothing when there are no workers n.max(1) returned every segment in one phantom partition for a nonexistent worker, silently dropping coverage. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> --------- Co-authored-by: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>